Is Marvel undoing Endgame? The ‘Avengers: Doomsday’ teaser sparks Steve Rogers debate

Marvel Studios may be quietly fuelling speculation around the fate of Steve Rogers after reports emerged of an unverified Avengers: Doomsday teaser circulating online and allegedly screening in select cinemas.

The clip, which has not been officially released by Marvel, has reignited debate among fans over whether the studio is preparing to revisit the emotional ending of Avengers: Endgame and potentially bring Chris Evans’ Captain America back into the Marvel Cinematic Universe.

According to multiple entertainment reports and footage shared on social media, the alleged teaser appears to reference the closing moments of Endgame. Viewers claim it shows Steve Rogers living a quiet life in the past with Peggy Carter, echoing the conclusion of the 2019 film.

Some fans have also suggested the clip ends with text hinting at Rogers’ return in Avengers: Doomsday. However, Marvel Studios has not confirmed the authenticity of the footage, nor has it announced Evans’ involvement in the upcoming film. Reports that the teaser is playing ahead of Avatar: Fire and Ash in select cinemas have also not been officially verified.

Rather than an accidental leak, the timing and circulation of the footage has led to speculation that Marvel may be allowing the moment to spread deliberately. In recent years, the studio has faced criticism for struggling to recreate the cohesion and cultural impact of the Infinity Saga, with Endgame widely regarded as its defining high point.

Reintroducing Steve Rogers, even indirectly, could be a calculated attempt to reignite nostalgia and test audience response without committing to firm plot details. Marvel has previously relied on controlled ambiguity and selective reveals to drive conversation around major releases, particularly within the Avengers franchise.

At the time of publication, Marvel Studios has not confirmed the teaser’s authenticity, Chris Evans has not announced a return as Captain America, and no official plot details for Avengers: Doomsday have been released.

Directed by the Russo brothers, Avengers: Doomsday is currently scheduled for release in December 2026 and is expected to reunite several major Marvel stars. Until Marvel addresses the speculation directly, questions remain over whether the studio is preparing to revisit its most definitive ending or simply letting fan conversation do the work for it.